658 CHAPTER 44: L OGICAL INTERFACE CONFIGURATION COMMANDSParameter number: Loopback interface number, which can be the number of any existingLoopback interface.Description Use the display interface loopback command to view the relevant informationabout the existing Loopback interfaces. If you do not provide a Loopback interfacenumber, this command will display the relevant information about all the existingLoopback interfaces.Related command: interface loopback.Example # View the status of Loopback 12. display interface loopback 12LoopBack12 current state: UPLine protocol current state: UP (spoofing)Description: LoopBack12 InterfaceThe Maximum Transmit Unit is 1536Internet protocol processing : disabledPhysical is LoopbackLast 300 seconds input: 0 bytes/sec 0 packets/secLast 300 seconds output: 0 bytes/sec 0 packets/sec0 packets input, 0 bytes, 0 drops0 packets output, 0 bytes, 0 dropsdisplay interface mfrSyntax display interface mfr [ mfr-number ]View Any viewParameter mfr-number: Multilink frame relay (MFR) interface number, which can be thenumber of any existing MFR interface.Table 117 Description on the fields of the display interface loopback commandField Descriptioncurrent state Physical state of the interface: UP/DOWNLine protocol current state State of the link layer protocol: UP/DOWNDescription Description string of the interfaceThe Maximum Transmit Unit Maximum transmit unit (MTU) of the interfaceInternet protocol processing Processing state of the network layer protocol:enabled/disabledPhysical Physical type of the interfaceLast 300 seconds input: 0 bytes/sec 0packets/secLast 300 seconds output: 0 bytes/sec0 packets/sec0 packets input, 0 bytes, 0 drops0 packets output, 0 bytes, 0 dropsStatistics on packets sent/received over the physicallayer
